import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;

/**
 * @program: leetcode148
 * @author: JCM
 * @create: 2023-03-14 10:12
 * @description:
 **/

class ListNode {
     int val;
     ListNode next;
     ListNode() {}
     ListNode(int val) { this.val = val; }
     ListNode(int val, ListNode next) { this.val = val; this.next = next; }
}
public class Main {
    public static void main(String[] args) {

    }
}
